Rosuvastatin calcium tablet and preparation process thereof

Abstract

The invention relates to the technical field of pharmaceutical preparations and discloses a rosuvastatin calcium tablet. [4-[4-fluorophenyl-6-(1-methylethyl)-2-[N_ methyl-(N-methylsulfonyl) amino]-5-pyrimidyl] methyltriphenylphosphonium bromide, (4R-cis)-6-formyl-2, 2-dimethyl-1, 3-dioxane-4-cyclopentyl acetate, potassium carbonate, dimethyl sulfoxide, methylbenzene, acetonitrile, ethyl acetate, methanol, isopropanol, sodium hydroxide, sodium chloride and calcium chloride. According to the rosuvastatin calcium tablet and the preparation process thereof, a plurality of experiments prove that: when reaction temperature is about 75 DEG C in intermediate synthesis, alkali is the optimal experimental condition of the potassium carbonate, and reaction raw materials can react completely, the generation of multiple impurities is prevented, productivity can be improved, and production cost is reduced; a hydrochloric acid solution is added in a rosuvastatin cyclopentyl ester synthesis process toneutralize redundant acid and alkali, so that the generation of the impurities is further reduced; and therefore, high-purity production is achieved.

Description

technical field [0001] The invention relates to the technical field of pharmaceutical preparations, in particular to a rosuvastatin calcium tablet and a preparation process thereof. Background technique [0002] Rosuvastatin Caleium (RosuVastatin Caleium), chemical name: bis-[(E)-7-[4-(4-fluorophenyl)-6-isopropyl-2-[methyl(methylsulfonyl) Amino]-pyrimidin-5-yl](3R,5S)-3,5-hydroxyhept-6-enoic acid] calcium salt (2:1), rosuvastatin calcium is suitable for diet control and other non-drug treatments Primary hypercholesterolemia (type IIa, including heterozygous familial hypercholesterolemia) or mixed dyslipidemia (type IIb) whose dyslipidemia cannot be adequately controlled (eg, exercise therapy, weight loss) is also suitable In patients with homozygous familial hypercholesterolemia, as an adjunct to diet control and other lipid-lowering measures (such as LDL depletion therapy), or when these methods are not applicable. [0003] Traditional rosuvastatin calcium production cost...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a rosuvastatin calcium tablet and its preparation process, which has the advantages of simple and efficient production, etc., and solves the problems of high production cost, long cycle and product containing Impurities are not easy to control, leading to problems such as affecting product quality